Brazilian biominerals for high-dose dosimetry

Vila, Gustavo Barretto; Caldas, Linda V.E.

doi:10.1016/j.radmeas.2011.05.040

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…A number of materials have been investigated not only for lowdose dosimetry, which is useful in medical applications, but also for high-dose dosimetry, which is important in retrospective or industrial dosimetry (Mesterh azy et al, 2012;Inrig et al, 2008;Wieser et al, 1994;Rocha et al, 2003;Teixeira et al, 2011;Vila and Caldas, 2011). There are various scenarios in which very high doses are involved, such as very-high-energy particle accelerators, nuclear power plants and very-high-dose irradiation facilities for food preservation or the modification of the properties of solid materials.…”

Section: Introductionmentioning

confidence: 99%

High- and very-high-dose dosimetry using silicate minerals

Watanabe

Cano

Carmo

et al. 2015

Radiation Measurements

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Section: Introductionmentioning

confidence: 99%

High- and very-high-dose dosimetry using silicate minerals

Watanabe

Cano

Carmo

et al. 2015

Radiation Measurements

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Radiation effect on cathodoluminescence and thermoluminescence emission of Ca‐rich oxalates from the human body

et al. 2018

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The radiation effect of luminescence emission of Ca‐rich oxalate biogenic materials (gallbladder and renal calculi) and a commercial standard sample (CaC2O4·H2O) is reported. The samples were characterized by environmental scanning electron microscopy, energy dispersive X‐ray spectroscopy, thermogravimetric and differential thermal analyses, display complex cathodoluminescence (CL) and thermoluminescence (TL) glow emissions. CL spectra (in the UV−infrared range) displayed non‐well defined peaks, and exhibited emission at: (i) higher energies (300–490 nm) mainly associated with non‐bridging oxygen hole centers, oxygen‐deficient centers and peroxy intrinsic defects, regardless of the sample; and (ii) higher, narrow and sharp wavebands, in the red region, probably induced by the presence of traces of Sm3+ (4G5/2→6H9/2 transition) and/or Tb3+ (5D4→7F3 transition) only for mineral‐like materials in the human body. The UV‐blue TL emission showed low‐intensity maxima in which it was possible to distinguish at least four groups of components in each sample.

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